a) Examination of wood bending strength Tools and materials required: o machine press / pull with equipment o Dial manometer o ruler measuring / roller meter o Wood with a size of 5 x 5 x 76 cm Inspection Method o Prepare equipment of the flexural strength at press machine o Put the timber on a machine with a distance ...
Read More »Keawetan dan Pengawetan Kayu
(a) Keawetan Alami Kayu Keawetan diartikan sebagai daya tahan kayu terhadap serangan faktor perusak kayu dari golongan biologis. Keawetan alami ditentukan oleh zat ekstratif yang bersifat racun terhadap faktor perusak tadi, sehingga dengan sendirinya keawetan alami ini akan bervariasi sesuai dengan variasi jumlah serta jenis zat ekstraktifnya. Hal ini menyebabkan keawetan alami berbeda-beda menurut jenis kayu yang sama maupun dalam ...
Read More »Understanding Glass
The glass is translucent and clear substance which occurs when the soil granules in the form of quartz and flint crushed or sandstone are melted together with chemicals. Glass containing silica (sand), potassium, calcium, and some parts of other chemicals. All parts of this material is melted and cooled at a certain temperature to make the hard but slippery. Glass ...
Read More »Perlengkapan Tungku
Kiln furniture merupakan perlengkapan tungku pembakaran yang berfungsi untuk mendukung proses pembakaran benda keramik. Kiln furniture umumnya terbuat dari bahan refraktori yang tahan terhadap pengaruh spalling yaitu beban mekanis, keadaan panas dan tahan terhadap leburan untuk pemakaian secara berulang. Bahan kiln furniture dapat terdiri dari bahan samot, mullite, cerdienite, mulcorite (mullite cordierite), aluminium tinggi, aluminium porselin, dan jenis bahan silicon ...
Read More »Definitions and Type Sandpaper
(1) Definition of Sandpaper Sandpaper is one of the tools used for leveling and smoothing a workpiece such as wood, steel, walls and others. (2) Specifications Sandpaper Specifications vary widely sandpaper seen from the shape, function, size, and material. As for the kinds of sandpaper are as follows: (A) Sandpaper Paper Emery paper usually for leveling and smoothing a product ...
Read More »Terms Quality Wood For Building Materials
Wood is meant here is the wood used as building material. The wood used as building material is wood obtained by mengkonsversikan shaped timber logs into beams, boards or other forms appropriate to their intended use. Wood as a building material can be divided into three (3) categories namely usage: Timber Structural Buildings Timber is to be used in ...
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